Barnwell County
Also known as Barnwell County, South Carolina, Barnwell County, SC
county in South Carolina, United States
Key facts
- Country
- United States
- State
- South Carolina
- Named after
- John Barnwell
- Seat
- Barnwell
- Largest community
- Barnwell
- Total
- 557.26 sq mi (1,443.3 km )
- Land
- 548.38 sq mi (1,420.3 km )
- Water
- 8.88 sq mi (23.0 km ) 1.59%
- Estimate 2025
- 20,653
- Density
- 37.545/sq mi (14.496/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
~9 min read
Article
Barnwell County is a county in the U.S. state of South Carolina. As of the 2020 census, its population was 20,589. It is located in the Central Savannah River Area. Its county seat is Barnwell.
History